Have never used those products , I think as long as you don't go to heavy with any of the products you will be OK , also after applying the products put them back in the heat, closed car in the sun etc., which will help the products to penetrate the leather.
Stikman

I do not put anything on my Randall sheaths. I have users and safe queens and the sheaths for both hold up for decades with no maintenance at all. They hold up much much better than lower cost sheaths from other sources. Heiser, Johnson and Sullivan sheaths are all superb products.

jclarksnakes,
Thanks for the compliment.
Stikman

This is the only thing I've ever put on a sheath, and I did so because I was concerned that the extreme heat/environment I was in at that time might dry out the leather. This stuff enjoys a great reputation, and it's specifically for leather. I would say consider it on your "user" knife sheaths.

Here in Colorado, the dry air is more of a problem.
The leather on my older sheathes and leather handles gets a white powdery surface.
I use a little BlackRock on my fingers and rub it on the surface until the white powder disappears.
Everything is good for about 6 months after that.
I think it is about time to look and I will take some pictures of the process.

Resurrecting this thread-

I have a white powder issue happening on six sheaths.

I have kept the sheaths in Zip-lock's with the air pushed out of them along with the specific stone for the correct sheath, etc. Why I like the Zip-lock's, it allows me to write all of the details of the knife so I can always be sure of the sheath that goes with which knife.

Some of the very long sheaths are not sealed and a couple of these also were showing some of the white powder.

It is not a mildew or humidity problem, seems to be the opposite low humidity and maybe moisture/oil in the leather wicking out of the leather? It wipes off with a little rubbing.

David what is Blackrock. Is this the issue you have had?

Want to nip this one in the bud!

Tom Flynn

I have seen the same on a few sheaths, but not all of them,
and they are all stored in the same place!
It does wipe off easily. I always wondered what causes it and why some sheaths don't get it?

Tony

Thanks Tony, I thought it was me.

I have drawers of sheaths and most have nothing and then one sheath in a drawer of 5 or 6 sheaths gets it.

Tom Flynn

Hi,
I'm sorry I did not follow up with pictures.
Some sheaths I can just rub with my thumb and they're good for a long time (up to a year) and others I use a soft cloth and it seems to work. I have a couple that I use a little Blackrock (very little) and it works great.
It is available at Amazon and other stores.

Thanks David!

What do you think causes the white film on the sheaths?

Tom Flynn